NEJM Interview: Zirui Song on the rise of concierge and direct primary care practices in the United States.

Zirui Song is an associate professor of health care policy and medicine at Harvard Medical School and a general internist at Massachusetts General Hospital. Stephen Morrissey, the interviewer, is the Executive Managing Editor of the Journal. Z. Song and J.M. Zhu. Primary Care — From Common Good to Free-Market Commodity. N Engl J Med 2025;392:1977-1979.